EP 0621578 B1 19990210 - Driving apparatus for liquid crystal display
Title (en)
Driving apparatus for liquid crystal display
Title (de)
Ansteuervorrichtung für Flüssigkristall-Anzeige
Title (fr)
Dispositif de commande d'un panneau d'affichage à cristaux liquides
Publication
Application
Priority
- JP 9579893 A 19930422
- JP 9580093 A 19930422
- JP 10230393 A 19930428
- JP 11286193 A 19930514
- JP 11286293 A 19930514
Abstract (en)
[origin: EP0621578A2] A driving apparatus for a liquid crystal display of a type sandwiching a layer of liquid crystal material capable of responding to a voltage of an effective value applied between row and column electrodes. The apparatus includes an image data buffer memory for storing and outputting a digital image data of one frame, transferred from an external circuit, in the form of an image data matrix; a matrix generator for outputting data having a predetermined orthogonal matrix; a converter for converting the image data with the use of the orthogonal matrix into an converted data matrix and for outputting the converted data matrix; a converted data buffer memory for storing and outputting the converted data matrix; a driver for driving the liquid crystal display in synchronism with a row signal, which applies the orthogonal matrix to the row electrodes of the liquid crystal display, and also a column signal which applies the converted data matrix to the column electrodes of the liquid crystal display. <IMAGE>
IPC 1-7
IPC 8 full level
G09G 3/36 (2006.01)
CPC (source: EP KR US)
G09G 3/3625 (2013.01 - EP KR US); G09G 2300/0828 (2013.01 - KR); G09G 2310/08 (2013.01 - KR)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0621578 A2 19941026; EP 0621578 A3 19950412; EP 0621578 B1 19990210; DE 69416441 D1 19990325; DE 69416441 T2 19991007; KR 940024653 A 19941118; KR 970006865 B1 19970430; US 5684502 A 19971104
DOCDB simple family (application)
EP 94106025 A 19940419; DE 69416441 T 19940419; KR 19940008387 A 19940421; US 57839095 A 19951228